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Bulletin of Botanical Research ›› 2017, Vol. 37 ›› Issue (4): 587-595.doi: 10.7525/j.issn.1673-5102.2017.04.015

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Cloning and Expression Analysis of Stress Treatments of a MADS-box Transcription Factor in Sweet Potato

TAN Chuan-Ting, SONG Wei-Han, ZHU Ming-Ku, XU Tao, DONG Ting-Ting, LI Zong-Yun   

  1. School of Life Science, Jiangsu Normal University, Xuzhou 221116
  • Received:2016-12-20 Online:2017-07-15 Published:2017-07-22
  • Supported by:
    Supported by the National Natural Science Foundation of China(31501352);Natural Science Foundation of Jiangsu Provence(BK20150229);National Training Programs of Innovation and Entrepreneurship for Undergraduate(201510320022,201510320022Z);Jiangsu Normal University doctoral degree teachers research support project(14XLR012)

Abstract: MADS-box proteins play important functions in the development and stress response of plants. A STMADS11 subfamily gene was cloned from Ipomoea batatas(L.) Xu22 according to I.trifida genome sequences, named IbMADS11-Like. By real-time RT-PCR IbMADS11-Like was expressed abundantly in roots, and a rapid declining trend was observed as storage root formation and development. The IbMADS11-Like might be involved in the storage root development of sweet potato. Stress treatment experiments showed that IbMADS11-Like was induced by drought, NaCl and high temperature, while was reduced by low temperature. ABA, IAA, ZT, BR, ACC, JA and GA treatments also impacted the expression of IbMADS11-Like, indicating that IbMADS11-Like might play functions in the development and stress response in sweet potato. These results play a foundation for further study on the physiological function of IbMADS11-Like in the development and stress response of sweet potato.

Key words: MADS-box protein, IbMADS11-Like, transcription factor, cloning, abiotic stress, sweet potato

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